applicationContext获取
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2022-03-03 13:17:30
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1
//自己：
request.getSession().getServletContext().getAttribute("org.springframework.web.context.WebApplicationContext.ROOT")
//官方：
public class MyInitializer implements ServletContextListener {
public void contextDestroyed(ServletContextEvent sce) {
// TODO Auto-generated method stub
}
public void contextInitialized(ServletContextEvent sce) {
ApplicationContext ac = WebApplicationContextUtils.getWebApplicationContext(sce.getServletContext()); //sce---ServletContextEvent
}
}
2
在web中如：servlet
WebApplicationContext context = ContextLoader.getCurrentWebApplicationContext();
//source
public static WebApplicationContext getCurrentWebApplicationContext() {
return (WebApplicationContext) currentContextPerThread.get(Thread.currentThread().getContextClassLoader());
}
3
public class MyApplicationHelper implements ApplicationContextAware {
private ApplicationContext applicationContext;
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {
this.applicationContext = applicationContext;
}
public ApplicationContext getApplicationContext(){
return this.applicationContext;
}
}
main独立应用程序中
1
ApplicationContext ac = new ClassPathXmlApplicationContext(new String[]{"applicationContext.xml","applicationContext-test.xml"});
ApplicationContext ac = new ClassPathXmlApplicationContext("classpath*:/applicationContext*.xml");
ApplicationContext ac = new ClassPathXmlApplicationContext("classpath*:src/folder/applicationContext*.xml");
2
ApplicationContext ac = new FileSystemXmlApplicationContext("WebRoot/WEB-INF/applicationContext.xml");
ApplicationContext ac = new FileSystemXmlApplicationContext("file:D:/workspace/testproject/WebRoot/WEB-INF/applicationContext.xml");